Could be cuz they're different. Observational learning extends the effective range of (both) operant and classical conditioning. During operant conditioning, one learns through (direct) experience. With observational learning you observe how it's done and then you do it. With children and even adults one way may not work.
(positive and negative reinforcement strengthen behavior; punishment, response cost, and extinction weaken behavior).
If I didn't explain it well lmk and I'll try again.
Children may not only repeat bad language, but can also learn other negative behaviors, such as aggression, from watching adults. ... American psychologist, Albert Bandura, chose to focus on the how these aggressive behaviors are learned.
The disadvantage of recent changes is that the subjects might not provide student with needed strategies of thinking and learning that otherwise designated subject might have that the student find it easier to pick a subject that will secure their place in the university